LATER:
There is a "modtime" attribute for the XML. It tells you when the module was last updated.
A way to propose and collect data for XML properties we don't yet support
A way for users to point out dubious data and suggest alternatives
A new Module Maker integrated into this (we use the original one for now)
An API

Re. Login:
Logging in will be required for those needing editing priveleges (moderators) and eventually for some optional personalized features.